Hand-lamp.



C. F. BURGESS.

HAND LAMP. APPLxc/mor.' FILED MAYzi. :917.

Leemeee.

CHARLES F. BURGESS, OF MADISON, lCNSlN, ASSIGYTGR T BITES-ESS BATTERY `CLVIPANY. CORPGRATION GF XJVSCQNSEN.

Specication of Letters Patent.

Patented hier.. t Q

To all who-m z' may concern."

Be it known that l, CHARLES F. Burmese, a citizen of the United States, residing,r at Madison, in the county of Dane, State of Wisconsin, have invented certain new and useful Improvements in Hand-Lemps and I do hereby declare the following to be :1 full,` clear, and exact description of the invention, such es will enable others skilled in the yart to which it appertaiins to make and fuse the same.

The present invention relates to battery hand lamps of e type in which the battery fend of which :t lamp may be detuchztbly connected. In hand lamps of the present invention, the buttery or body portion may be discarded when the cells of the battery become exhausted and e new battery substituted.l The initial cost of the complete equipment is low, end as compared with many hand lamps now in use, there is a very considerable reduction in weight through elimination of the heavy fiber or metal .ons ing in vwhich the batteries ol such devices are housed.

. It is en object of the present invention to provide a. lenip support which may be ettached conveniently to the end oi' the battery and in which the lamp itself is movebly' mounted so that it may be brought into or out of Contact with e terminal of the bettry to light or extinguish it. To eccomplishpthis result in moet eiective manner,

- the battery may be of special construction as described herein. Other features and edvanteges of the inventionl will appear from a description of certain preferred embodi ments thereof as illustrated in the eccompa-nying drawings, in which- Figure 1 is a rien', principally in Isection, Showing the arrangement of the cells composing the battery with one embodiment of the lamp support of the present invention applied to the end thereof.

Fig. 2 is en elevation of the lamp holder of Fig. i.

Fig. 3 is o section along the line 3-3 of Fig. 2.

Fig. 4 is e sectional elevation of a. modiied form of lamp support.

Fig. 5 is a. section along the line 55 of Fig. 4.

Fig. 6 is e sectional elevation of another form of lamp support.

Referring to the drawings, in which similar reference characters denote simile/r parte throughout the several views, thel battery shown in l is composed of threedry cells A, B and C. Each of the cells has e carbon electrode l0 tipped with e. metallic oep ll which forms one terminal thereof. The other electrode of each cell is in the form of e zinc cup 12 which also serves as e container for the electrolytie peste and the depolnrizing materiel which constitute parts of each cell. 'The peste and material :tre retained Within the cell by the pitch. seal 13. The foregoing details may he. varied in many ways. A Wrapping of impregnated peper or other suitable materiel l-l. vvaterproot'ed7 surrounds the zinc cup except for e small portion near the. bottoni thereof.

This Wrapping is "turned over 'the top ci the cell and extends inwardly toward the metallic oep 11. Each of the cells of the battery, exceptthe firstone A, fitted tightly upon its upper end n. metallic cap which ere tends inwardly far enough to engage the npper fece of terminal l1 to which it prefer .vbly is soldered. lglfhen the cells are placed together shown in Fig. l, the zinc cup of one eell rests upon the oep l5 of nn adje cent cell, but in. order to ineke :theft elecn trical Contact and to attach the cells rigidly together, solder muy be applied et n number of places as indicated et 1G. fl'lxe entire number of cells thus rigidly connected to gether in series connection and constituting the battery are Wrapped with e. Covering i7 of peper or other ,suitable insnlatinf-ir mete rial. The peper may Weterprooed. A conductingl strip i8 is attached et. its: lower end 19 to the exposed zinc cup of the third cell C. The conducting strip extends to the other end of the battery Where it i9 firmly held beneath and makes electrical connection .with a terminal cap 2G forced tightly over lne tery may he covered by e dish er. 1

preferably lll() of insulating materia-l, or the side Wrapping may be folded in over the bottom of the loivermost cell.

Vllith the construction above described, the tvv-o terminals of the battery are adjacent to one another in convenient. relation for ready attachment to a current-consuming device. ln the device shown in Fig. 1 there is a metallic sleeve or casing of a, size to lit over the cap which constitutes the outer terminal the battery. Attached to the outer end oi this sleeve and extending Within it is :t metallic reflector 26 provided with an aperture at its inner end., through which the incandesmit` lamp 27 adapted to be moved, riihis lamp mounted on a. sliding ineinl'ier 28 which is provided with a screwtlireaded socket portion adapted to reocive the baee 30 of the lamp. The inner terminal 3l of the lamp is adapted to engage lthe metallic cap 11 constituting the inner terminal oi? the battery. The support 28 is retained in place Within the sleeve 25 by means ot studs B2 which pass through inclined slots 33 cut in .fliametrically opposite points of the sleeve. 'The studs 32 are provided on their outer ends with buttons 33 by which theyv may be more conveniently inanipulatmi. The relation of the inclined slots to the casing is such that when the. latter in place upon the end ot the battery. as :'il'iowi'i in Fig. l, partial Irotation ot' the lamp supi'iort by means of the buttons 325 will cause the' lamp to be pushed into contact with 'withdrawn from the terminal li oi' the battery lo make or break the circuit oli' the lan'lp. ln order to insure that the sleeve 25 is placediipon the end. ot' ille battery the right distance, a swag'e 34 is 'lorined in 'the casing 9.5 at Suche point 'that it will act as a stop against the end ot the battery'. Thal portion ot' the sleeve 25 which lits over the end et the batter)v should yneferably be provided with slots l5 in order to cause u aprirneT lil'v oi llic sleeve to seisurely retain it in place upon the battery.

in the device dcscril'ied above. the lamp is rigidly mounted in the supi'iorting member QS and its innerigerminal is brought into contact with the inner terminal of the battery solely by the cam action ot the inclined slots and cooperating studs.r lt may. however. in Home cases be desirable to provide Aiient support 'tor the lamp and such an arrangement is illustrated in Figrsj. and 5. in which thc sleeve carries the reflector QG and a -cuppfntinp; incmher 363 in the form oit a rino: retained in place within the casing by' sinds 237 passing through inclined Slots in thc valla thereof. lflxtcnding' in- 'ardly from the ring lili are irinp; arms 38 of which two are shown in l"i;','5.. although any desired numb/aiV may be used. Tl springr arms support a lamp .sockel fil adapt'- ed to receive the hase Lll0 of the lamp 4l,

the inner terminal 42 of which is adapted to engage the inner terminal 11 of thebattery precisely as in the construction shown in the other figures, but on account of the 'spring support the rotation of the ring 36 will cause the inner terminal of the lamp to be lirmly pressed into contact with the corresponding' terminal of the battery. The spring` safeguards the lamp base against undue pressl'ire.`

Thel embodiments rof the invention described depend upon a partial. rotation of the lamp support to control'the circuit of 'the lamp. In some cases, however, it is con'- venient 0o provide a support in which the lamp may be controlled by a motion of its carrier with respect to the casing but Withou-t'rotary motion therein. Such an arrangement is illustrated vin Fig. 6 in which the casing 25 has attached to one side thereof a resilient member 43 constituting a. supportfor the lamp socket 44. The free end of this supporting member is bent upwardly and then extends outwardly through an aperture in the casing Iand carries at its outer end a. button 45 by which the support may be manipulated. The resiliency of the support will tend to bring the lamp into the normal position shown in Fig; Gand break its circuit as soon as the button 45 is released. While with the construction shown inthis figure there is a motion of the lamp relative to the reflector itv will not be sufficient. to cause the filament of the lamp to move t'ar enough from the focus of the reflector to have anyconsidcrable disadvantaigeous effect upon the beam of light emitted from thesurt'ace of the reflector.

'In all ot' the arrangements described herein the lamp is movable through an aperture in the bottom of the reflector', which` with the casing. remains in fixed relation to the end of thc battery nponwhich it is placed. The motion of thc lamp to carry its inner terminal into or out of contact with the inner terminal oi the battery will be of such a. limited extent that the Shiftingr ot' the filament of the lamp with respect. to the focal poi nt of thc concave reflector will not seriously interfere with the reflection oi' the rays of light as a substantially parallel beaux from the surface ot the reflector.

liVhile certain embodiments ot' the invention have been illustrated and described it will be understood that the invention is not to he limited to these particular embodiments. as various other changes in the details of construction of the apparatus and arrangements for mounting the lamp socket are embraced Within the principle 'of the invention.

l claims l. ln combination, a battery comprising a plurality ot' dry cells electrically connected in series and havin@r a central terminal of with sai one polarity and an adjacent terminal of oppositedpolarty, a metal casing contacting adjacent terminal, a lamp, and a support for said lamp electrically connected with said casing and adapted to move said lamp lwith respect to said casing into and out of engagement with said central termi nal.

2. A battery hand lamp comprising, in combination, a battery having a central terminal otone polarity and an outer terminal of opposite polarity, a casing adapted to be detachably secured to said battery in electrical contact withsaid outer terminal, a' lamp support movably mounted in said casing and means for moving said lamp support with respect. to said casinar to carry the lamp into or out of engagement with the central terminal of the battery.

3. A battery hand lamp comprising, iiiconibination, a battery having a central tei'- minal of one polari-ty and an outer terminal of opposite polarity, a casing adapted tobe detachably secured to said battery in contact with said outei terminal, alaiiip support mounted within said casing and provided with'a portionextending through the side of said casing whereby said support maybe actuated, a socket mounted on said support and a lamp mount-ed in said socket.

4. A battery hand lamp comprising, in combination, a battery having a central terminal of one polarity and an outer terminal 'of op osito polarity, a casing adapted to be detac ably secured to said battery in contact 'with said outei' terminal, a reflector secured within said casing and having an aperture at its inner end,k a. lamp support mounted Within said casing and movable with respect thereto, a lamp mounted on said su pport and extending through the aperture in the re' flector, and means for operating said sup-4 poit to move said lamp into and out ot' engagement with the central terminal ofthe battery. l

5. In combination, a battery comprising a 'plurality ot dry cells rigidly and electrically connected in series relation and having a central terminal of one polarity and an ad.

jacent terminal of oppositel polarity, a casing secured to said battery in contact with said adjacent terminal, a movable memberr mounted within said casing, a socket on saidy movable member, a lamp mounted in said socket, and means for moving said movable member with respect to said casing whereby said lamp may be moved'into or out of engagement with ,said central terminal.

6. In combination, a battery comprising a plurality of dry cells rigidly and electrically connected in series and having a central terminal of one polarity and an adjacent terminal ot opposite polarity, a casing detachably secured upon said adjacent terminal, a resilient support within said casing, a lamp socket attached to said support and a lamp secured in said socket and adapt-- ed to be moved into or out of engagement with said central terminal by motion of said resilient support.

7. A device of the character described comprising, in combination, a battery having an inner terminal of one polarity and an outer terminal of opposite polarity, a casing adapted to be detachably secured to said battery in contact with said outer terminal. a support within the casing having one end attached to said casing and the other end extending through an aperture iu said casing, a* socket upon the support and an electrical translati'n; device mounted in said socket and having a terminal adapted to be broughtiiito engagement `with the inner battery terminal by movement of said support.

tl. A. device ot' the character described comprising, iii combiiiation, aA battery having an inner terminal ot one polarity and an outer terminal ot' ,opposite polarity, a

casing` adapted to be detachably secured to said battery iii contact with said outer ter; minal` a support within said casing with one end attached to said casing and the other end extending through an aperture in said caslamp mounted in said socket and. having a, terminal adapted to be broughty into engagement with thev inner battery terminal by movement oi" said support, and a. reiiector mounted within said casing and having an aperture at its inner end through which said lamp extends.

9. A battery hand' lamp comprising, in combination, a battery, a casing associated with the battery, a reflector mounted within said casing, a lamp adj: cent to said reflector, and a lamp support movable with respect to said reflector to move said lamp into and out of engagement vwith one terminal of said battery.

110. A battery hand lamp comprising, in

lGB

combination, a. battery, a lamp, a casing associated with the battery, and a lamp support iii said casing and movable with respect thereto to move said lamp into and oi1t ot' engagement with one terminal of said battery, substantially as described. I

ln testimony whereof I athx my signature` CHARLES F. Bit-Ronse. 

